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  • 1
    Electronic Resource
    Electronic Resource
    s.l. : American Chemical Society
    Inorganic chemistry 5 (1966), S. 1200-1207 
    ISSN: 1520-510X
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
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  • 2
    ISSN: 1432-0983
    Keywords: Key words RNA-binding domain ; Fission yeast ; RNA processing ; hnRNP
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract  Proteins containing RNP consensus-sequence RNA-binding domains (CS-RBDs) play diverse roles in many aspects of RNA metabolism. Using a PCR strategy, we cloned portions of six new Schizosaccharomyces pombe fgenes encoding RBD proteins, including a putative homolog of the mammalian splicing factor SAP49. The genomic locus corresponding to a second PCR product, designated rnp24 a, was cloned and characterized in detail. Sequence analysis revealed that the Rnp24 protein is highly charged and contains a second RBD with an unusually long Loop-3 sequence. Strains containing a disrupted copy of the rnp24 gene display neither loss of viability nor any discernible growth defects under a variety of conditions, suggesting that the function of Rnp24p overlaps with that of another fission yeast protein. Although database searches did not identify proteins that share extensive amino-acid identity with Rnp24p, phylogenetic analysis suggests that its closest relatives are metazoan hnRNP proteins. The lack of an observable phenotype in S. pombe fcells lacking Rnp24p is consistent with this classification, since hnRNP proteins in higher cells include several distinct subfamilies with similar sequences and RNA-binding specifities.
    Type of Medium: Electronic Resource
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  • 3
    Electronic Resource
    Electronic Resource
    Springer
    Current genetics 35 (1999), S. 88-102 
    ISSN: 1432-0983
    Keywords: Key words GTPase ; RNA-protein interaction ; Protein targeting
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract The signal recognition particle (SRP) is a ribonucleoprotein required for targeting a subset of nascent pre-secretory proteins to the endoplasmic reticulum membrane. Of the six SRP polypeptides, the most highly conserved is Srp54p, a modular protein consisting of an amino-terminal (N) domain of unknown function, a central GTPase (G) domain, and a carboxyl-terminal (M) domain implicated in the recognition of both signal sequences and SRP RNA. To identify regions of Srp54p that interact with other SRP subunits or regulatory proteins, we carried out systematic mutagenesis of the fission yeast homolog, principally using a “clustered charged-to-alanine” strategy. Of the 35 alleles examined, 13 are unable to support growth, two confer cold-sensitivity, five confer heat-sensitivity, and 15 produce no discernible phenotype. The lethal and conditional mutations map throughout the protein to several conserved regions, confirming that these motifs play critical roles in Srp54p function. The effects of the amino-acid substitutions are analyzed with reference to the recently determined tertiary structures of the N/G domain and the intact protein from a thermophilic bacterium.
    Type of Medium: Electronic Resource
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  • 4
    Electronic Resource
    Electronic Resource
    Amsterdam : Elsevier
    Psychiatry Research 19 (1986), S. 147-154 
    ISSN: 0165-1781
    Keywords: Minnesota Multiphasic Personality Inventory ; adolescents ; anorexia nervosa ; depression
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Medicine
    Type of Medium: Electronic Resource
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  • 5
    Electronic Resource
    Electronic Resource
    [S.l.] : American Institute of Physics (AIP)
    Journal of Applied Physics 74 (1993), S. 5327-5340 
    ISSN: 1089-7550
    Source: AIP Digital Archive
    Topics: Physics
    Notes: Aging of proportional counters in CF4/iC4H10 mixtures is studied as a function of gas composition. Anode surfaces are analyzed by Auger electron spectroscopy. Anode-wire deposits are formed from 95/5 and 90/10 mixtures of CF4/iC4H10; etching of deposits occurs in 50/50 and 80/20 mixtures of CF4/iC4H10 and in pure CF4. Gold-plated wires are resistant to aging resulting from chemical attack by CF4, but non-gold-plated wires are too reactive for use in CF4-containing gases. An apparent cathode aging process resulting in loss of gain rather than in a self-sustained discharge current is observed in CF4 and CF4-rich gases. Principles of low-pressure rf plasma chemistry are used to interpret the plasma chemistry in avalanches (≥1 atm, dc). To understand anode aging in CF4/iC4H10 gases, a four-part model is developed considering: (i) plasma polymerization of iC4H10; (ii) etching of wire deposits by CF4; (iii) deposition that occurs as a result of radical scavenging in strongly etching environments; and (iv) reactivity of the wire surface. Practical guidelines suggested by the model and application of the model to other fluorine-containing gases are discussed.
    Type of Medium: Electronic Resource
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  • 6
    Electronic Resource
    Electronic Resource
    [S.l.] : American Institute of Physics (AIP)
    Journal of Applied Physics 75 (1994), S. 3862-3869 
    ISSN: 1089-7550
    Source: AIP Digital Archive
    Topics: Physics
    Notes: Soft-recovery plate impact experiments have been conducted to study the evolution of damage in polycrystalline Al2O3 samples. Examination of the recovered samples by means of scanning electron microscopy and transmission electron microscopy has revealed that microcracking occurs along grain boundaries; the cracks appear to emanate from grain-boundary triple points. Velocity-time profiles measured at the rear surface of the momentum trap indicate that the compressive pulse is not fully elastic even when the maximum amplitude of the pulse is significantly less than the Hugoniot elastic limit. Attempts to explain this seemingly anomalous behavior are summarized. Primary attention is given to the role of the intergranular glassy phase which arises from sintering aids and which is ultimately forced into the interfaces and voids between the ceramic grains. Experiments are reported on the effects of grain size and glass content on the resistance of the sample to damage during the initial compressive pulse. To further understand the role of the glass, plate impact experiments were conducted on glass with chemical composition comparable to that which is present in the ceramic. These experiments were designed to gain further insight into the possibility of "failure waves'' in glasses under compressive loading.
    Type of Medium: Electronic Resource
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  • 7
    Electronic Resource
    Electronic Resource
    Oxford, UK : Blackwell Science Ltd
    Alimentary pharmacology & therapeutics 22 (2005), S. 0 
    ISSN: 1365-2036
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: Background:  Non-cardiac chest pain is a common and expensive condition. Risk factors for non-cardiac chest pain are poorly understood and lack description in the USA community.Aim:  To explore risk factors and health-seeking behaviour in non-cardiac chest pain in a USA community.Methods:  Olmsted County, MN subjects who reported at least monthly or severe chest pain in response to a validated questionnaire were compared with controls. All the Mayo Clinic medical records were reviewed; those with cardiac disease or relevant organic conditions were excluded.Results:  Of 2118 eligible subjects, 1524 (72%) returned a questionnaire, 389 subjects (26%) reported any chest pain and 186 (12.2%) at least monthly or severe chest pain. Of these, 62 were excluded for a cardiac diagnosis or another organic cause. Thus, 124 subjects (9.1%, 95% CI: 7.6–10.8%) reported at least monthly or severe non-cardiac chest pain, of which 65 (52.4%) had frequent reflux symptoms. Independent risk factors for non-cardiac chest pain were obesity (OR 3.0, 95% CI: 1.64–5.50), family history of reflux (OR 2.8, 95% CI: 1.73–4.32), previous cigarette use (OR 2.0, 95% CI: 1.27–3.18), aspirin use (OR 1.5, 95% CI: 1.00–2.31) and use of antiarthritis medicines (OR 2.0, 95% CI: 1.27–3.16). Compared with subjects with non-cardiac chest pain and associated gastro-oesophageal reflux symptoms, subjects with non-cardiac chest pain without associated gastro-oesophageal reflux symptoms were less likely to have a family history of reflux, more likely to be younger, and less likely to be obese. Compared with controls, subjects with non-cardiac chest pain without gastro-oesophageal reflux symptoms were younger (OR 0.97, 95% CI: 0.95–0.99), reported higher somatic symptom scores (OR 1.1, 95% CI: 1.08–1.73) and were more likely to be obese (OR 2.6, 95% CI: 1.15–5.93).Conclusions:  Recurrent or severe non-cardiac chest pain is common in the community. Half of the people with significant non-cardiac chest pain have frequent reflux symptoms, thus, risk factors for non-cardiac chest pain are similar to risk factors for gastro-oesophageal reflux disease. People with non-cardiac chest pain without reflux symptoms have a slightly different risk factor profile.
    Type of Medium: Electronic Resource
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  • 8
    ISSN: 1745-4557
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Process Engineering, Biotechnology, Nutrition Technology
    Notes: Consumers in San Francisco, California and Philadelphia, Pennsylvania, USA were asked to purchase, in simulated retail markets, beef retail cuts of different grades, Choice versus Select (equivalent to Good), or of different trim levels, Regular Trim (no more than 13 mm of external fat; Philadelphia only), Extra Trim (no more than 8 mm of external fat) or Super Trim (no external fat), all priced at Parity or Premium (Parity plus 10%) prices. Consumers in Philadelphia purchased significantly more Extra Trim and Super Trim steaks and roasts than Regular Trim. At the time of purchase, consumers in both cities could not detect the visual differences in Choice versus Select, but upon eating them found that Choice cuts were better tasting, but also fatter, and that Select cuts were leaner, but had problems with taste and texture. Both Choice and Select were rated high for consumer acceptance, but for different reasons, taste for Choice, leanness for Select.
    Type of Medium: Electronic Resource
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  • 9
    Electronic Resource
    Electronic Resource
    Oxford, UK : Blackwell Publishing Ltd
    British journal of educational technology 27 (1996), S. 0 
    ISSN: 1467-8535
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Education
    Type of Medium: Electronic Resource
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  • 10
    Electronic Resource
    Electronic Resource
    Amsterdam : Elsevier
    Nuclear Instruments and Methods in Physics Research Section A: 324 (1993), S. 113-126 
    ISSN: 0168-9002
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Physics
    Type of Medium: Electronic Resource
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